Garbage-incinerator.



J; PRESGOTT. GARBAGE INGINBRATOR.

Logss@mi ABPLIOATION FILED MAB.. 14, 1911. llEENiWE-D JULY 9, 19-12.

Patented Apr.14 1914,

2 SHEETS-511111111.

' J. PRESCO'TTH GARBAGE INGINERATOR.

APPLIOATION H'LBD 11111.14, 1911. RBNBWED JULY 9, 1912.

' 1,993,356. Patented Apr. 14, 191@ 5" p *l 2 SHEETS-Smm 2.

UNITED sTAtrEs PATENT oEEroE.

JESSE PVRESCOTT, 0F WEBSTER, MASSACHUSETTS.

Y GARBAGE-INCINERATOR.

Specification of Letters Patent.

Application filed March 14, 1911, Serial No. 614,496. Renewed July 9, 1912. erial No. 708,512.

To all 'whom it may concern Be it known that I, JESSE PnEsoo'rr, a citizen of the United States, residing at Webster in the county of Worcester and State of Massachusetts, have invented an Improvement in Garbage-Incinerators, of which the following description,.1nconnec tion with the accompanying drawings, 1s a specification, like letters lon the drawingsy "and in an economic aspect, as welles from considerations of convenience.

More particularly my invention ,A is designed as an improvement on former types `of incinerators by providing` a novel arrangement of flues so constructed as to constitute effective smoke consuming dering the apparatusentirely o orless, such flues being also conveniently formed in corners of the inclosing casing, such casing being of angular cross section, forming flue corners at appropriate intervals.

The invention furtherV provides a novel form of center burner combined with a protecting hood `for drying out the garbage or refuse, and starting and accelerating the combustion thereof.

Further features 'of the invention relate to an improved form'of dumping gratos and garbage holdin' basket in combination, and in connection t erewith an arrangement of doors relative thereto so that the v vorking partscan be easily reached for necessary' handling.

The above and other detail features of the invention will be fully understood from the v following description taken in connection with the accompanying drawings and thereafter pointed out in the appended claims.

Referring to the drawings; Fi ure 1 is a central 'vertical section through t e apparatus Online 1-1 of Fig. 2; Fig. 2 is a horizontal section on line 24-2 of Fig. l; and Fig. 3 is a detail showing the construction of dumping grates and the burner.

Theinclosing shell or casing 1 is rectan- 3 leading from the .top thereof. This shell is preferably formed with double, spaced apart walls, the space 4 between such walls being either left as dead air space or filled with suitable insulating material. Fixed transversely in the casing, in the lower portion thereof is a transverse grid or strut 5 and from the corners thereof project struts 5 on which the garbage basket or holder G is supported. This basket is preferably and as shown frusto conical in form being cornposed of spaced apart slats or bars encircled by rings 7 and 8 at the top and bottom respectively, and by an intermediate ring 9 by which said slats are held in position; it will be understood that this merely typifics any suitable construction of open-work basket which may be used in the practice of my invention. T e top of said basket is formed to closely fit the inner walls of the casing, being cut away to conform with the corner flues later described. At a central point the grid 5 is formed with an annular neck 10 internally screw threaded at its top to receive a burner 11. This burner has an externally threaded sleeve 12 to engage the threads of neck 10 opening into a conical cap or hood portion 13, closed except for an annular scries of holes 14 drilled in the base passing downward and outward in a circle at sonic little distance from the inlet collar 12. The cap or hood 13 which thus servesas a protector for the burner has an extension or shroud 15 extended .downward from the burner, base terminating in an outwardly flared riml. The top of this hood is shown extended in a squared head 17 which may be engaged by a wrench for unscrewing the combined burner and hood to remove the same. The fuel supply to the burner is from a suitable supply pipe 18 entering the casing at 19 with a suitable mixer 20 atthis point, extending thence by pipe 21 up into the neck 10 for delivery to the burner, whose holes are opposite the grate-spaces of the circular grate or basket-6.

The bottom of the garbage lbasket or holder 6 is formed with opposite drop grate sections 22', 23, pivoted at their ends at 24, to ears 25 on grid '5. These grate portions are adapted to be engaged from underneath at points remote from their pivots by slidable rods 26,- 27, whereby they are supported Patented Apr. 14, 1914.

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fthe in horii/.ontal operative position. These rods 26, 27, are slidably supported in the casing and -have handles 28 extending therefrom so that upon the withdrawal of said rods the rates may swing downward permitting asket to be emptied into an ash pan 29 when the contents are completel burned. The drop sections 22, 23, have radial openings 30 therein, and the holes 14 in lthe burner are soformed that each will corres ond with and be ,directly opposite one of t e radial openin s 30, so that the tongues of flame projecte downward and outward from the openings 14 will quickly work their way 'through the garbage mass at the bottom of the basket and make an outlet around the bottom of the basket and up the conical sides thereof.

Across the corners of the casing, plates 31 are fixed, these extending from a point at the lower portion of the basket up to near the top of the casing. The corner liues thus formed are closed at the bottom by any suitable closure caps 32 and open at the top.

Relatively small openings 33 into said lues are formed just below the top of the basket and a series of other openings 34 preferably and as shown in the form of vertical slots are disposed at intervals in the height of said [lues above the basket top. A dumping hopper door 35, for the admission of the ffarbage or other material to be incinerated, 1s pivoted at 36, the door portion 37 thereof having a suitable handle 38, fixed thereto.

Y Registering openings are formed in the inner and outer casing members whereby the basket, burner and other working parts of the device are readily accessible whenever necessary. Theseopenings are closed by any suitable doors, those shown at 39 and 40 being hinged to swing on vertical pivots on the casing.

In the ractice of my invention most combustible orms of waste may be incinerated merely by dumpin the same into the basket without the use o burner 11. lFor the con` sumption of ordinary garbage, vegetable refuse, ctc., for which my apparatus is especially intended, however, the mass filling the basket 6 would be mostly orwholly incomf bustible by itself, and to accelerate and insure the complete combustion thereof, gaseous or volatile fluid such as gasolene is supplied through pipe 18 to the burner 11. This u on being ignited causes the projection ofp tongues or jets of'iiame downward and outward as guided by the shroud 15, 16 of the hood 13, which quickly eats a way through the'bottom portion of th'e garbage mass, so that the flame and heated currents emerge through the openings 30 to pass along to the periphery of the bottom, thence up the arin outsldes of the basket to finally enter t e flue inlets 33. It is to be observed that in this passage of the flame 'the garbage mass dries out and begins to be.'

consumed, increasing vent for the gaseous products of combustion will be found through the Slatted sides of the basket, through the garbage mass atv the eriphery of the basket and thence into t 1e corner flues through the upper slots 34. At the same time the central part of the garbage mass is being rapidly dried out b heat transmitted thereto by the hood 1.3, w ich is likewise heated by the annular burner flame. :As the o eration thus progresses so that the garbage 'egns to be appreciably consumed, the inner casing and corner flue lates 31 will become heated especially at t e lower portions thereof, and the flame passing into the lues at successive points in the height thereof, through the several sets of vertical slots, will cause substantially complete combustion-of all combustible rases before their final escape through the chimney flue 3, thus rendering the apparatus entirely odorless in use.

Itis to be noted that by reason of the construction including the central burner with its protecting cone cap extending up well into the basket and arranged to direct the flame downward and outward, in conjunction with the u wardly and outwardly flaring openwork asket, and the peripheral corner lues coperating therewith, as set forth, the heat of the burner is spread up into the center of the garbage mass by means lof the conical cap 13, while the flame from the burner is spread outward by the lower rim of this cap and drawn by the flue suction outward and upward along the Haring open sides of the basket. so as to impinge on and eat into all portions of the bottom and sides of the arbage mass, the garbage being thus quie y dried out and incinerated. .I consider the construction for thus disseminating and s reading the heat and flame within and a out all parts of the garbage mass to be an important feature of the nvention and I desire to cover the construction for eifeetin this broadly, as also the special constructlon whereby the disseminatiitilg and spreading of the heat and flame is e 4ected by a central 'burner and by spaced apart peripheral-fines, as disclose It is to be further observed that by the disposition of the iues in the corners of the shell or casing, the interior of the receptacle is left entirely unobstructed so that a large quantity of garbage can be received, and

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particularly so that it will be more evenly laid iu the basket; this latter' is an important feature since for the proper operation of' the flame in drying out and facilitating the combustion of the garbage mass, it is desirable that such mass be disposed as uniformly as may be in the receptacle so that flame and heated currents willnot eat a way through and find an unobstructed outlet atl one side before the othe parts of the mass are attacked in like degree. In former apparatus of this kind the presence of transverse flues within the garbage receptacle has led to the uneven disposition of the garbage therein with `the resulting objections just noted. Further this arrangement of flues can be much more cheaply constructed than when separate conduits are formed therefor. The construction of a central burner with the flaring protecting hood thereover as one element is particularly advantageous, affording an effective heating and drying means extending well up into the garbage mass while serving to direct the flame and heated currents downward and outward in line with the grate slots, as requisite for the proper operation of the apparatus. Further ,this construction enables the' burner and hood to be quickly `and easily removed whenever necessary.

The construction of a frusto conical basket with drop bottom grates and with the doors opening opposite thereto, enables the garbage and ash residue to be manipulated as may be necessary and disposed of with facility.

Having described my invention, what I claim as new and desire to secure by Letters latent is as` follows: l. A garbage incinerator, comprising a vertically extending casing angular in cross section. means for holding garbage therein composed of a grate in the lower part thereof having an upstanding open-work holder portion spaced away from a part of the walls of the casing, means for dividing ofi' corner spaces of said casing to form flue deliveries, and a burner for gaseous fuel mounted inthe lower part of the Ycasing to direct flame to en- Y compass the-garbage mass, the upstanding open-Work holder portion and the corner. fines being arranged .and having provision to insure vent for the products of combustion of said burner when the casing is filled with garbage.

2. A garbage incinerator, comprising an upright casing-angular in cross section, garbage holding means in the lower part thereof consisting of a grate having an open-work upstanding holder spaced away from the casing Walls at its lower portion, butA substantially fitting said walls at its top, means for forming lines in the corners of said casing, and a gas burner mounted and arranged to direct flame to encompass the garbage 3. A; garbage incinerator, comprising an upright 'casing angular in cross section, means for partltionmg off the corners of said casing to form filles, a garbage holder in the lower part of said casing having an outwardly flaring upstanding holder spaced away from the casing walls for most of its height, but substantially fitting said walls at its top, and a central burner for gaseous fuel arranged to spread and direct flame to encompass the garbage mass, said corner flues havingopenings into Vthe space below the top of said upstanding' holder for the purpose stated.

4. A garbage incinerator comprising a casing, a flue extendingvertically alonga side thereof, a flaring openwork holder for matter to be burned in the lower part of said casing, and means for producing heat 'centrally of the casing and directing the same outward to pass upward around said flaring openwork holder, there being a passage. to permit heated currents to pass thence up said fine, whereby heated currents are caused to directly attack all parts of the garbage mass simultaneously.

5. A garbage incinerator comprising a casing, a central burner mounted in the lower portion thereof and having provision to direct flame downwardly and outwardly, a garbage holder with flaring openwork sides extending around said burner, whereby flarne and heated currents may pass from the bottom upward along said openwork sides to4 impinge on all parts of the garbage mass, and flue means opening near the top of said garbage holder to promote the movement of flame'as described.

6. A garbage incinerator comprising a casing, a central burner mounted in the lower part thereof having provision to di-, rect flame annularly downward and outward, a holder for matter to be burned having a grate mounted below said burner with openings through which flame may pass, and an upper open-work portion flaring outwardly to the walls of the casing.

7. A garbage incinerator -comprising a casing, a burner mounted in the lower part thereof having a circular series of openings arranged to produce a downwardly and outwardly projected annulus of fla-me and a tapering protecting hood thereover, and a holder with flaring openwork sides for matter to be burned mounted in said casing to encircle said burner, whereby the heat is disseminated within and the fiame made to encompass 'the' garbage mass.

8. A garbage incinerator comprising a casing, a burner mounted inthe lower part 'RUT thereof having openings to direct flame annularly downwardly and outwardly, a garbage holder encircling said burner with radially extending openings therein, anda tapering hood having a part extending downward and outward below the burner holes to aid in directing the flame around the garbage mass so as toy encompass the same.

9. A garbage incinerator comprising a casing, a burner mounted in the lower part thereof having provision to'create a downwardly and outwardly projected annulus of flame and having a conical protecting hood, and a holder for matter to be burned encircling said burner having slotted sides flaring outwardly upward to the walls of said casing, and erpheral fines arranged to promote sprea( ing of the flame over the garbage mass from said burner.

10. A garbage incinerator comprising la casing, a burner mounted in the lower part thereof having provision to create downwardly and outwardly projected flame, anV open-work holder for matterto be burned spaced away from the casing wall and flaring upwardly outward withits top extending to the walls, and a vertical Hue at a side of said casing having an opening just below the top of said holder..y

11. A garbage incinerator comprising a casing, a central burner in the lower part thereof having provision to direct the flame downwardly and outwardly, an encircling grate on which matter to be burned may rest, a flaring openwork holder for garbage extending outward to fit the casing walls, and a flue extending upward in the casing constructed to receive heated currents only after passage in contact with the garbage mass.

12. A garbage incinerator comprising a casing, a burner arranged in the lower part thereof, a holder for matter to be burned spaced awav from the casing walls and flaring upwardly outward with its top extending to the walls of the casing, and a flue extending vertically in the casing at a side thereof having an opening just below the top of said holder, and other openings into the casing above said holder.

13. A garbage incinerator comprising a casing, angular in cross-section, a burner mounted in the lower part thereof, an openwork holder for matter to be burned spaced away from the casing walls and flaring upwardly outward with its top extending to the walls, flues formed in the corners of said casing having openings just below the top of said holder, and other openings at intervals above the top thereof.

14. A garbage incinerator comprising a casing, a burner mounted in the -lower part thereof having provision to direct flame downward and outward, an open-work holder for matter to be burned spaced away from the casing walls andencircling said burner flaring upwardly outward w1th its top extending to the walls of the casing, a flue vertically arranged at a side of the casing having an opening just below the top of said holder, and other openings above said holder.

v 15. A `garbage incinerator, comprising a vertically extending casing, means for holding garbage or the like 1n the lower part thereof, said means having an open construction to permit direct action of the llame on both the bottom and sides of the garbage mass, a central burner extending up into the garbage holding space of said casing, arranged to spread flame outward, and a peripheral flue construction having provision for an unobstructed opening laterally adjacent said garbage holding means and near the periphery thereof whereby heat is both disseminated centrallyup within the garbage mass and the flame'caused tospread outward over the periphery thereof.

16. A garbage 1ncineratorcompri-sing a casing, a burner removably mounted ccntrally in the lower part thereof having provision to direct flame downwardly and out-- ward, an open-work holder for matter to be burned having sides flaring upwardly outward to the walls-of the casing the lower portion of said holder being spaced away from the easing walls to leave a space for heat circulation, and a bottom grate with radial openings, said grate being formed to be dropped downward at will to permit escape of the ash residue.

17. A garbage ineinerator comprising a casing, a garbage holder mounted in the lower part thereof having slotted, upwardly flaring sides, a central burner having a cover extending up within said holder and arranged to direct flame outwardly, and flues at the eriphery of said casing having openings a( jacent an upper portion of said holder and near the periphery thereof whereby heat is disseminated at the center of the garbage mass by conduction and flame spread to encompass the bottom and sides of the garbage mass in passing. to said flue openings.

18. lAnapparatus of the kind described, comprising an upright angular easing having corner flues formed therein, means for holding garbage or the like in a lower portion of said casing, comprising a bottom grate 'and a peripheral vertical grate spaced apart annularly fromthe walls of the casing, the annular space thus formed opening upward into said corner fines, the partsbeing arranged to provide means for preserving circulation passage outside of the garbage from the bottom of the peripheral grate to the upper end of said corner f lues above the peripheral grate, when the apparatus is filled with garbage.

19. An apparatus of the kind described, i

comprising an upright rectangular casing having vertical corner ues formed therein, a holder in the lower portion of said casing extending therearound and spaced apart from the walls thereof, a gas burner'in the lower portion of said holder, and means for maintaining circulatory passages outside of the holder from the bottom of the latter up 110 through the annular spaces thus formed and directly into said corner flues when the apparatus is filled with garbage.

In testimony whereof, I have signed my nume to this specification, in the presence of two subscribing Witnesses.

JEssE PEEsooTT.

VVitnesses: p

GEO. H. MAXWELL'.v EDWARD MAXWELL. 

